1380001388 has 24 divisors (see below), whose sum is σ = 2574297600. Its totient is φ = 645407568.

The previous prime is 1380001387. The next prime is 1380001421. The reversal of 1380001388 is 8831000831.

It is not an unprimeable number, because it can be changed into a prime (1380001387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108920 + ... + 120927.

It is an arithmetic number, because the mean of its divisors is an integer number (107262400).

Almost surely, 2^1380001388 is an apocalyptic number.

It is an amenable number.

1380001388 is a deficient number, since it is larger than the sum of its proper divisors (1194296212).

1380001388 is a wasteful number, since it uses less digits than its factorization.

1380001388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229949 (or 229947 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1380001388 is about 37148.3699238607. The cubic root of 1380001388 is about 1113.3366547843.

The spelling of 1380001388 in words is "one billion, three hundred eighty million, one thousand, three hundred eighty-eight".